论文部分内容阅读
人类利用除虫菊作杀虫剂,系在十五世纪时开始。我国之利用和种植除虫菊作杀虫药剂,首先由中国化学工业社于1919年在上海西郊租地辟试植场,后逐渐扩充并推广至江浙各地,均有栽植,至抗日战争前年产量已达百吨。可是反动政府对生产不加重视,任其自流。至1937年,日寇侵入我国上海,中国化学工业社的除虫菊种植场,沦为战地,所有除虫菊全部遭殃。当时日本种植除虫菊产量占世界第一位,大量向我国倾销,因此在抗日战争期间,
Human use of pyrethrum as an insecticide began in the fifteenth century. The use and cultivation of pyrethrum as an insecticide in China was first planted by the China Chemical Industry Corporation in 1919 in the western suburbs of Shanghai. The plant was gradually expanded and extended to all parts of Jiangsu and Zhejiang and planted. The annual output before the War of Resistance against Japan was already Hundred tons. However, the reactionary government does not attach importance to production and let it go. By 1937, the Japanese invasion of China’s Shanghai, China Chemical Industry Corporation’s pyrethrum plantation, became the battlefield, and all pyrethrums were destroyed. At that time, the output of pyrethrum planted in Japan accounted for the first place in the world, and dumped a large quantity in China, so during the War of Resistance Against Japan,